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krseaman replied to Sanyo DP42848 Sound - No Picture

in Troubleshooting TVs and Video Sources

08-06-2012, 06:24 PM
Re: Sanyo DP42848 Sound - No Picture

I swapped out the master inverter with a known good board and left the slave unplugged, and it does the same thing. So i also think its not a problem on the Inverters....

Would bad bulbs make it come on and go off? The Entire screen lights up and looks normal for 1 second before going off.

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krseaman replied to Sanyo DP42848 Sound - No Picture

in Troubleshooting TVs and Video Sources

07-30-2012, 05:49 PM
Re: Sanyo DP42848 Sound - No Picture

I checked the Voltage to the two inverter boards and i'm getting 24V to both the master and the slave. If i unplug the slave inverter, and leave the master plugged in, i get the same behavior: turn on, 6 seconds later light comes on for 1 second, then off.

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krseaman replied to Sanyo DP42848 Sound - No Picture

in Troubleshooting TVs and Video Sources

07-28-2012, 02:09 PM
Re: Sanyo DP42848 Sound - No Picture

Here are pictures of the inverter boards, dark spots look to be Flux not Charred....

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krseaman started a topic Sanyo DP42848 Sound - No Picture

in Troubleshooting TVs and Video Sources

07-28-2012, 01:37 PM
Sanyo DP42848 Sound - No Picture

Tv powers on. After 6 seconds, picture comes on w/ faint buzzing sound from each inverter board equally - for 1 second then goes away.

Picture is visible in LCD with a flashlight.

I've attached a couple of pictures, let me know where I should start!

Kevin...

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Sanyo DP42848 Sound - No Picture